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Agreement No. CE 69/2001 (HY) Scott Wilson Ltd Tsuen Wan Bypass, Widening of Tsuen Wan Road between Tsuen Tsing October 2008 Interchange and Kwai Tsing Interchange and Associated Junction Improvement Works Environmental Impact Assessment Table of Contents 8. LANDSCAPE & VISUAL IMPACT ASSESSMENT ............................................... 8-1 8.1 Introduction................................................................................................... 8-1 8.2 Standards and Legislation............................................................................ 8-1 8.3 General Approach........................................................................................ 8-1 8.4 Terminology.................................................................................................. 8-2 8.5 Impact Assessment...................................................................................... 8-2 8.6 The Study Area ............................................................................................ 8-3 8.7 Consultation with Relevant Departments ..................................................... 8-3 8.8 Methodology for Landscape Impact Assessment......................................... 8-3 8.9 Landscape Sensitivity................................................................................... 8-3 8.10 Magnitude of Landscape Impacts ................................................................ 8-4 8.11 Significance of the Landscape Effects ......................................................... 8-5 8.12 Visual Assessment Methodology.................................................................. 8-8 8.13 Mitigation ...................................................................................................... 8-8 8.14 Environmental Legislation and Guidelines ................................................... 8-9 8.15 Planning & Development Review ................................................................. 8-9 8.16 Baseline Conditions (Year 2011)................................................................ 8-13 8.17 Landscape Resources (LR)........................................................................ 8-17 8.18 Landscape Character Area........................................................................ 8-17 8.19 Landscape and Visual Effect Assessment Methodology............................ 8-19 8.20 Landscape Resource (LR) effects.............................................................. 8-20 8.21 Landscape Character Area (LCA) effects................................................... 8-20 8.22 Visual Effects.............................................................................................. 8-22 8.23 Visual Sensitive Receivers (VSRs)............................................................. 8-23 8.24 Mitigations .................................................................................................. 8-27 8.25 Residual Impacts........................................................................................ 8-29 8.26 Environmental Monitoring and Audit .......................................................... 8-30 8.27 Summary of Conclusions ........................................................................... 8-30 List of Tables Table 8-1 Classification of Landscape Sensitivity..................................................................... 4 Table 8-2 Classification of Magnitude of Landscape Impact .................................................... 4 Table 8-3 Levels of Significance................................................................................................6 Table 8-4 Numbers of Tree Schedule for Felling, Transplanting and Compensation ............... 8 List of Figures Figure 8.1 Tsuen Wan Outline Zoning Plan (Plan No. S/TW/25) Figure 8.2 Kwai Chung Outline Zoning Plan (Plan No. S/KC/21) Figure 8.3 Baseline Landscape Resources & Landscape Character Areas and Photographs Figure 8.3a Landscape Character Areas (On Site Photos) Figure 8.4 Visual Envelope Final EIA Report i 08. Final EIA Report (July 08) 20080922b Agreement No. CE 69/2001 (HY) Scott Wilson Ltd Tsuen Wan Bypass, Widening of Tsuen Wan Road between Tsuen Tsing October 2008 Interchange and Kwai Tsing Interchange and Associated Junction Improvement Works Environmental Impact Assessment Figure 8.4a Zone of Visual Influence and Key Visual Sensitive Receptors (VSRs) Figures 8.5 to 8.9 Conceptual Landscape Layout Figure 8.10a Conceptual Landscape Layout and Photomontages – 1 Figure 8.10b Conceptual Landscape Layout and Photomontages – 2 Figure 8.10c Conceptual Landscape Layout and Photomontages – 3 Figure 8.10d Conceptual Landscape Layout and Photomontages – 4 Figure 8.10e Conceptual Landscape Layout and Photomontages – 5 Figure 8.11 Schedule of Landscape Resources & Characters Effects Figure 8.12 Schedule of Landscape Visual Effects Figures 8.13 to 8.15 Road Cross Sections Figure 8.16 Details of Bridge Deck Planter Figure 8.17 Details of Planter at Bridge Pier Figure 8.18 Images of Propose Planter Figure 8.19 Tree Surevy Plan Appendix Appendix 8-A Tree Schedule Appendix 8-B Conceptual Planting Plan Final EIA Report ii 08. Final EIA Report (July 08) 20080922b Agreement No. CE 69/2001 (HY) Scott Wilson Ltd Tsuen Wan Bypass, Widening of Tsuen Wan Road between Tsuen Tsing October 2008 Interchange and Kwai Tsing Interchange and Associated Junction Improvement Works Environmental Impact Assessment 8. LANDSCAPE & VISUAL IMPACT ASSESSMENT 8.1 Introduction 8.1.1 This section of the EIA report seeks to establish the landscape and visual effects of the construction and operation of the upgraded Tsuen Wan Road. The assessment process identifies the current and projected baseline conditions, the effects of the road widening upon the landscape resource and visual receptors within the road corridor and the landscape mitigation measures proposed in order to reduce significant effects. 8.1.2 A description of the development proposals is included elsewhere in this environmental statement, whilst Figures 8.5 to 8.9 demonstrate the Conceptual Landscape Layouts. 8.2 Standards and Legislation 8.2.1 The following legislation, standards and guidelines are applicable to the appraisal of landscape and visual impacts and the design of mitigation measures in Hong Kong: • Environmental Impact Assessment Ordinance (Cap. 499. s.16) and the Technical Memorandum on EIA Process (EIAO TM), particularly Annexes 3, 10, 18, 20 and 21; • Hong Kong Planning Standards and Guidelines Chapter 10, ‘Conservation’; • Hong Kong Planning Standards and Guidelines Chapter 4, ‘Recreation, Open Space and Greening’; • Works Branch Technical Circular (WBTC) No. 25/93 – ‘Control of Visual Impact of Slopes’; • WBTC No. 25/92 – Allocation of Space for Urban Street Trees; • WBTC No. 17/2000 – Improvement to the Appearance of Slopes; • CED (GEO) – GEO Publication No. 1/2000 – Technical Guidelines on Landscape Traetment and Bio-Engineering for Man-made Slopes and Retaining Walls; and • WBTC No. 7/2002 – Tree Planting in Public Works. 8.2.2 The assessment method has, however, been further refined in accordance with contemporary guidance. EIAO Guidance Note No. 8/2002 – Preparation of Landscape and Visual Impact Assessment under the Environmental Impact Assessment Ordinance. 8.3 General Approach 8.3.1 For the purposes of the environmental assessment process, a clear distinction is drawn between landscape and visual impacts: • Landscape impacts: relate to the impacts of the proposed Scheme’s construction and operation, upon the physical characteristics or components of the landscape. Together these form the character of that landscape e.g. landform, vegetation, and buildings. • Visual impacts: relate to the changes arising from development to individual ‘receptors’ views of that landscape e.g. local residents or passing motorists. Final EIA Report 8-1 Agreement No. CE 69/2001 (HY) Scott Wilson Ltd Tsuen Wan Bypass, Widening of Tsuen Wan Road between Tsuen Tsing October 2008 Interchange and Kwai Tsing Interchange and Associated Junction Improvement Works Environmental Impact Assessment 8.4 Terminology 8.4.1 Landscape – comprises those physical components, which together form the appearance of land, including its shapes, colours and textures. Landscape also reflects the way in which these various components combine to create distinctive landscape character, particular to specific localities. 8.4.2 Study Area – is the area within which desk and site surveys have been carried out when determining the extent of the influence of development upon the adjoining landscape. 8.4.3 Zone of Visual Influence – the extent of the Study Area is principally determined by the definition of a Zone of Visual Influence (ZVI), within which views of the proposed development may be achieved. The extent of the ZVI is determined by many factors including topography and intermediate visual intrusions such as buildings and blocks of woodland, which create areas of visual “dead ground.” 8.4.4 Landscape Character Areas – Landscape Character Areas (LCA’s) are areas of homogenous landscape character. Typical landscape components defining character include land use, built form, landform & vegetation. 8.4.5 Visual Receptors – within the ZVI key viewpoints from publicly accessible roads, footpaths and other open spaces are identified e.g. Tsuen Wan Park. Individual visual receptors groups within the ZVI are also identified and categorised in terms of their sensitivity to visual change e.g. local residents and passing motorists. 8.4.6